Jambs baedsley



(No Model.)

J. BARDSLEY. Electric Lighting Apparatus. No. 242,498. Patented June 7,1881.

J") T I .f I e z y I a a i [I i E] .H 1 H II] o Wit71e s s e 8: I-nvento'r:

UNTTED STATES PATENT OFFICE.

JAMES BARDSLEY, OF AKRON, OHIO, ASSIGNOR OF ONE-HALF TO JAMES H.

PETERSON, OF SAME PLACE.

ELECTRIC LIGHTlNG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 242,498, dated June '7, 1881.

Application filed April 15, 1881.

To all whom it may concern:

Be it known that I, JAMES BARDSLEY, of Akron, in the county of Summit and State of Ohio, have invented a new and useful Improvement in Electric Lighting Apparatus, of which the following is a specification.

My invention relates to the system ofelectrio lighting wherein the lamps are supported on tall masts, and it has especial reference to the apparatus connected with such masts for raising and lowering the electric lampsthereon, and securing and protecting the same when in position.

The apparatus now in use consists of two I 5 vertical parallel bars, placed on opposite sides of, supported by, and attached to the mast, which constitute a railway upon which the wheels of a car sustaining the lamps travel, which bars, with their horizontal supportingo rods, serve as a ladder by which to ascend the mast. In practice this arrangement is found objectionable for several reasons, among which may be mentioned the difliculty, owing to the fact that all rounds of the ladder differ in length, of making the tracks true, the expense of construction, the fact that in very tall masts the taper thereof compels the track to be placed so near thereto at the base as to render it useless as a ladder, or so far from the mast at the 3 top as to weaken it at a point where it is essential that it be firm, and the liability to accumulations of frost and sleet interfering with the travel of the car.

The objects of my invention are threefold:

first, to provide an apparatus, easily constructed, by which the lamps maybe securely raised without interfering with the mast-ladder, and without danger of interference from ice or sleet; second, to hold the carriage firmly 4 in position when raised; and,third, to protect the lamps and increase their vertical etfect.

It consists in constructing upon either side of the mast ladders parallel thereto, and in addition thereto two round continuous rods,

supported from the ladder or mast parallel to each other, extending from at or near the top of the mast to or near the base, connected in such manner as to leave their outer surfaces even throughout, upon which a carriage or frame is adapted, by slides ofpeculiar construction, to travel.

(No model.)

It also consists in devices for securely holding and protecting the lamps when raised.

My invention is illustrated by the accompa n yin g drawings, wherein Figure 1 represents the upper part of a mast provided with my improved apparatus.

The mast A is steadied by stays B B, and upon either side of it and parallel thereto is placed a ladder, O O.

In a. suitable frame-work, near the top, are two pulleys, D D. Over these pulleys pass ropes H H, sustaining the lamp-carriage upon the outside and connected to a counter-weight on the inside of the mast. 6

From the lower part of the pulley-frame depend, on opposite sides of the mast, parallel rods E E. These rods are preferably of gaspipe, and are connected by inner screw-joints, one whereof,f, is shown enlarged in Fig. 3, so as to leave the outer surface uniform throughout. Steadiuess is given to these rods by short rods 0, connected with the ladders O O.

G G represent the carriage (a plan of which at the line at a: of Fig. 1 is shown in Fig. 2) to sustain the electric lamps. This carriage is provided with slides F F, (shown enlarged in Figs. 3 and 4,) which grasp the rods E E, and enable the carriage G to slide up and down thereon. These slides are hollowed internally between their ends, as shown in section in Fig. 4, to prevent being bound by sleet or ice upon the rods E E.

Two ropes, H H, serve to support and raise this carriage to the pulley-frame.

Upon the upper part of the carriage are placed two conical projections or dowels, I I, adapted to enter corresponding cups 1 I when the carriage is raised, and thereby hold it firmly in place.

The electric connection is made by the pins J J entering the cups J J, the details of which are not shown.

Above the pulley-frame is placed a shield, K, which serves the double purpose of protect- 9 5 ing the lamps and apparatus and reflecting the light vertically downward.

Having thus described my invention, I claim- 1. The combination, with an electric-light I00 mast, of ladders on either side thereof parallel thereto, and two parallel rods passing from near the top to near the base thereof, substantially as and for the purpose hereinbefore set forth.

2. In combination with an electric light mast, two parallel rods of even diameter throughout on opposite sides of the mast, extending from at or near the top thereof to or near the base thereof, substantially as and for the purpose hereinbefore set forth.

3. In combination with an electric light mast, two or more rods of even diameter throughout, parallel to the axis of and situated on opposite sides of said mast, and a carriage adapted, by devices such substantially as 

